Spin mop bucket



FIG. 1 is a perspective view.

FIG. 2 is a front side view.

FIG. 3 is a back side view.

FIG. 4 is a right side view.

FIG. 5 is a left side view.

FIG. 6 is a top view; and,

FIG. 7 is a bottom view. 

CLAIM The ornamental design for a spin mop bucket, as shown and described. 